CA1162802A - Installation for generating superheated process steam from salt-containing raw water - Google Patents
Installation for generating superheated process steam from salt-containing raw waterInfo
- Publication number
- CA1162802A CA1162802A CA000378447A CA378447A CA1162802A CA 1162802 A CA1162802 A CA 1162802A CA 000378447 A CA000378447 A CA 000378447A CA 378447 A CA378447 A CA 378447A CA 1162802 A CA1162802 A CA 1162802A
- Authority
- CA
- Canada
- Prior art keywords
- raw water
- steam
- preheaters
- water
- salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 150000003839 salts Chemical class 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 7
- 238000009434 installation Methods 0.000 title abstract description 8
- 230000006837 decompression Effects 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 5
- 239000000567 combustion gas Substances 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000002311 subsequent effect Effects 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
- B01D1/284—Special features relating to the compressed vapour
- B01D1/2846—The compressed vapour is not directed to the same apparatus from which the vapour was taken off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
- B01D1/289—Compressor features (e.g. constructions, details, cooling, lubrication, driving systems)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B3/00—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
- F22B3/04—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass by drop in pressure of high-pressure hot water within pressure-reducing chambers, e.g. in accumulators
- F22B3/045—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass by drop in pressure of high-pressure hot water within pressure-reducing chambers, e.g. in accumulators the drop in pressure being achieved by compressors, e.g. with steam jet pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/21—Acrylic acid or ester
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Abstract Installation for generating superheated steam from raw water con-taining salt using preheaters for heating the raw water. The last preheater, as seen in the flow direction of the raw water, is followed via a control valve by a decompression cylinder. Part of the raw water evaporates and the vapor is with-drawn from the dome of the decomposition cylinder by a compressor which compres-ses and heats it and discharges it as superheated steam.
Description
3L~6;~:80Z
Background of the Invention Field of the Inven_ion The invention relates to an installation for generating superheated process steam from salt-containing raw water, using preheaters for heating the raw water.
Description of the Prior Art For generating superheated steam for steam turbine installations there is employed, as a rule, a high-pressure steam generator (German Published Non-Prosecuted Application 22 ~3 380) in which a closed water-steam circuit is provided. In this water-steam circuit, high-quality feedwater is used which is kept free of salt and other impurities by processing and filter equipment. Contrary thereto, in chemical operations for coal gasification, in raw-oil pumping or in the processing of oil sand or oil shale, process steam is required which is not fed back into the installation. This means that, for generating superheated process steam for such purposes, large quantities of feedwater must be processed and desalinated, because otherwise salt deposits must be expected, particularly in the evaporation zone, which degrade the heat transfer and cause corrosion of the evaporator tubes.
Summary of the Invention An object of the present invention is to provide an arrangement in which salt-containing water can be converted into superheated steam without the formation of salt deposits.
With the foregoing and other objects in view, there is provided in accordance with the invention an apparatus for generating superheated process steam from raw water containing salt, using preheaters for heating, comprising preheaters to impart sufficient heat to raw water containing salt flowing therethrough to permit subsequent evaporation of said water, a decompression chamber for collecting a body of unevaporated water and salt above which is a 0~
vapor space containing steam connected to said last preheater in the flow dir-ection of the raw water flowing through the preheaters, a control valve inter-posed in the flow of raw water between said last preheater and said decompression chamber to regulate the flow of raw water to the decompression chamber, said water partially evaporating with the unevaporated water and salt collecting as said body in the decompression chamber and the evaporated water collecting in said vapor space above said body, and a compressor with its suction side con-nected to the vapor space of the decompression chamber for withdrawal of steam therefrom and compression and heating of the withdrawn steam.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in an installation for generating superheated process s-team from salt-containing raw water, it is nevertheless not intended to be limited to the details shown, since various modifications may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
Brief Description of the Drawing The invention, however, together with additional objects and advantages thereof will be best understood from the following description when read in con-nection with the accompanying drawing in which is diagrammatically illustra~ed ap-paratus for carrying out the invention. The principal components and their re-lationship as seen from the drawing, are preheaters for heating raw water contain-ing salts, followed by a control valve and then a decompression chamber. Water and salt sepa-ate from steam resulting from vaporization of part of the raw water. A steam compressor withdraws steams from the decompression chamber, com-presses and heats the steam, and discharges the compressed heated steam through a transport line to the site of steam consumption. A gas turbine for driving the 1~ii21~0;i~
compressor may be coupled to a generator. Unevaporated raw water cont2ining salt discharged from the decompression chamber is subjected to stepwise reduction in pressure to vaporize part of the water and condense and recover -the conden-sate as well as treating incoming raw water and cooling the unevaporated water.
Detailed Description of the Invention In accordance with the invention, the last preheater, as seen i.n the flow-direction of the raw water, is followed via a control valve by a decompress-ion cylinder. The preheaters are designed to impart sufficient heat so that part of the raw water fed-in by the control valve is evaporated in the decompress-ion cylinder; and that the part of the decompression cylinder filled with steam is followed by a steam compressor for superheating and compressing the steam.
An embodiment example is shown in the drawing. Here, a steam com-pressor which is driven by a gas turbine 2 is provided for superheating the steam.
The steam compressor 1 draws vapor from the dome 3 of a decompression cylinder 4, into which heated, salt-containing raw water is fed through arl ~xpansion nozzle 5. Thlough the decompression of the water in the expansion nozzle 5, part of the fed-in raw water evaporates in the decompression cylinder 4, while the rest of the fed-in raw water and the sal~s contained in the raw water accumulate at the bottom of the decompression cylinder 4. A separator 6 which separates the dome 3 from the remaining content of the decompression cylinder 4 is arranged in-side the decompression cylinder 4 to remove drops en*rained in the uprising stea~
The salt-containing water accumulating at the bottom of the decompression cylinder 4 is withdrawn through drain line 7 and a major part forced by pump 8 through lines 9 and 10, into preheater 11. There, the water is heated to near the boil-ing point at high pressure and then flows via control valve 12 to the expansion nozzle 5.
~art af the unevaporated water and salt leaving the decompression cy-linder 4 through the :Line 7 flows via a blow-down line 13 and heat exchanger14 in-serted in line 13, to the condensers 15 where the water is further decompressed in steps until it leaves the installation via line 16 through which it is directed to a blow-down tank.
Water which is taken from a supply tank 18 and is brought to an inter-mediate pressure by a pump 19 serves to cool the individual condensers 15. The water from pump 19 flows through heat exchanging tubes 20, which are arranged inthe individual condensers 15 as well as through a water softener 21 arranged be-tween the condensers 15 in the line of the heat exchanging tubes 20. Part of thewater pumped by the pump 19 is branched off ahead of the water softener 21 and is -returned to the outside. Below the heat exchanging tubes 20, each condenser 15 contains collecting tanks 22 in which the water condensed at the heat exchangingtubes 20 is collected. The water collecting in the collecting tanks 20, i. e.
the condensate then flows off to a condensate or distillate tank via a line 23.
The raw water heated in the heat exchanging tubes 20 is collected in a feed-water tank 25 and is forced from there by pump 26 through heat exchanger 14and preheater 28 with a control valve interposed between them. Exhaust gas from gas turbine 2 heats preheater 11. Preheater 28 is heated by the exhaust gas of the turbine 2, which leaves the preheater 11. The preheated salt-containing raw water from preheater 28, flows through line 29; is mixed with the water from theline 9 at the feed-point 30 and the mixture then flows through line 10, preheater 11, control valve 12, nozzle 5 into the preheater 11.
The steam compressor 1 compresses and superheats the saturated steam drawn from the dome 3 of the decompression cylinder 4, without the need for hot,heat-exchanging surfaces for steam superheater in a steam power generating station. The superheated and compressed steam then passes into a transport line 31~ through which it is conducted to the site of the steam consu~ption. In case superheated steam is not required but only saturated steam is needed there, which latter is normally difficult to transport ~6z8al~
in a longer transport pipe, an injection cooler 32 with a throttling valve 42 is provided at ~he location of the consumption. Injection water from a line 33, branched off ahead of the softener 21, is forced by pump 34 through control valve 35 inserted in line 33 into injection cooler 32. Saturated steam is discharged from injection cooler 32.
The gas turbine 2 is coupled to the steam compressor 1 and in ad-dition to a compressor 36 and a generator 37 which can provide, for instance, the electric power for the entire installation. The combustion chamber 38 inserted between the compressor 36 and the gas turbine 2 is supplied from a tank 39 with fuel ( gas, oil, etc.) This tank 39 may also be connected to burners 40 and 41 by means of which the preheaters 11 and 28 may be heated.
Background of the Invention Field of the Inven_ion The invention relates to an installation for generating superheated process steam from salt-containing raw water, using preheaters for heating the raw water.
Description of the Prior Art For generating superheated steam for steam turbine installations there is employed, as a rule, a high-pressure steam generator (German Published Non-Prosecuted Application 22 ~3 380) in which a closed water-steam circuit is provided. In this water-steam circuit, high-quality feedwater is used which is kept free of salt and other impurities by processing and filter equipment. Contrary thereto, in chemical operations for coal gasification, in raw-oil pumping or in the processing of oil sand or oil shale, process steam is required which is not fed back into the installation. This means that, for generating superheated process steam for such purposes, large quantities of feedwater must be processed and desalinated, because otherwise salt deposits must be expected, particularly in the evaporation zone, which degrade the heat transfer and cause corrosion of the evaporator tubes.
Summary of the Invention An object of the present invention is to provide an arrangement in which salt-containing water can be converted into superheated steam without the formation of salt deposits.
With the foregoing and other objects in view, there is provided in accordance with the invention an apparatus for generating superheated process steam from raw water containing salt, using preheaters for heating, comprising preheaters to impart sufficient heat to raw water containing salt flowing therethrough to permit subsequent evaporation of said water, a decompression chamber for collecting a body of unevaporated water and salt above which is a 0~
vapor space containing steam connected to said last preheater in the flow dir-ection of the raw water flowing through the preheaters, a control valve inter-posed in the flow of raw water between said last preheater and said decompression chamber to regulate the flow of raw water to the decompression chamber, said water partially evaporating with the unevaporated water and salt collecting as said body in the decompression chamber and the evaporated water collecting in said vapor space above said body, and a compressor with its suction side con-nected to the vapor space of the decompression chamber for withdrawal of steam therefrom and compression and heating of the withdrawn steam.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in an installation for generating superheated process s-team from salt-containing raw water, it is nevertheless not intended to be limited to the details shown, since various modifications may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
Brief Description of the Drawing The invention, however, together with additional objects and advantages thereof will be best understood from the following description when read in con-nection with the accompanying drawing in which is diagrammatically illustra~ed ap-paratus for carrying out the invention. The principal components and their re-lationship as seen from the drawing, are preheaters for heating raw water contain-ing salts, followed by a control valve and then a decompression chamber. Water and salt sepa-ate from steam resulting from vaporization of part of the raw water. A steam compressor withdraws steams from the decompression chamber, com-presses and heats the steam, and discharges the compressed heated steam through a transport line to the site of steam consumption. A gas turbine for driving the 1~ii21~0;i~
compressor may be coupled to a generator. Unevaporated raw water cont2ining salt discharged from the decompression chamber is subjected to stepwise reduction in pressure to vaporize part of the water and condense and recover -the conden-sate as well as treating incoming raw water and cooling the unevaporated water.
Detailed Description of the Invention In accordance with the invention, the last preheater, as seen i.n the flow-direction of the raw water, is followed via a control valve by a decompress-ion cylinder. The preheaters are designed to impart sufficient heat so that part of the raw water fed-in by the control valve is evaporated in the decompress-ion cylinder; and that the part of the decompression cylinder filled with steam is followed by a steam compressor for superheating and compressing the steam.
An embodiment example is shown in the drawing. Here, a steam com-pressor which is driven by a gas turbine 2 is provided for superheating the steam.
The steam compressor 1 draws vapor from the dome 3 of a decompression cylinder 4, into which heated, salt-containing raw water is fed through arl ~xpansion nozzle 5. Thlough the decompression of the water in the expansion nozzle 5, part of the fed-in raw water evaporates in the decompression cylinder 4, while the rest of the fed-in raw water and the sal~s contained in the raw water accumulate at the bottom of the decompression cylinder 4. A separator 6 which separates the dome 3 from the remaining content of the decompression cylinder 4 is arranged in-side the decompression cylinder 4 to remove drops en*rained in the uprising stea~
The salt-containing water accumulating at the bottom of the decompression cylinder 4 is withdrawn through drain line 7 and a major part forced by pump 8 through lines 9 and 10, into preheater 11. There, the water is heated to near the boil-ing point at high pressure and then flows via control valve 12 to the expansion nozzle 5.
~art af the unevaporated water and salt leaving the decompression cy-linder 4 through the :Line 7 flows via a blow-down line 13 and heat exchanger14 in-serted in line 13, to the condensers 15 where the water is further decompressed in steps until it leaves the installation via line 16 through which it is directed to a blow-down tank.
Water which is taken from a supply tank 18 and is brought to an inter-mediate pressure by a pump 19 serves to cool the individual condensers 15. The water from pump 19 flows through heat exchanging tubes 20, which are arranged inthe individual condensers 15 as well as through a water softener 21 arranged be-tween the condensers 15 in the line of the heat exchanging tubes 20. Part of thewater pumped by the pump 19 is branched off ahead of the water softener 21 and is -returned to the outside. Below the heat exchanging tubes 20, each condenser 15 contains collecting tanks 22 in which the water condensed at the heat exchangingtubes 20 is collected. The water collecting in the collecting tanks 20, i. e.
the condensate then flows off to a condensate or distillate tank via a line 23.
The raw water heated in the heat exchanging tubes 20 is collected in a feed-water tank 25 and is forced from there by pump 26 through heat exchanger 14and preheater 28 with a control valve interposed between them. Exhaust gas from gas turbine 2 heats preheater 11. Preheater 28 is heated by the exhaust gas of the turbine 2, which leaves the preheater 11. The preheated salt-containing raw water from preheater 28, flows through line 29; is mixed with the water from theline 9 at the feed-point 30 and the mixture then flows through line 10, preheater 11, control valve 12, nozzle 5 into the preheater 11.
The steam compressor 1 compresses and superheats the saturated steam drawn from the dome 3 of the decompression cylinder 4, without the need for hot,heat-exchanging surfaces for steam superheater in a steam power generating station. The superheated and compressed steam then passes into a transport line 31~ through which it is conducted to the site of the steam consu~ption. In case superheated steam is not required but only saturated steam is needed there, which latter is normally difficult to transport ~6z8al~
in a longer transport pipe, an injection cooler 32 with a throttling valve 42 is provided at ~he location of the consumption. Injection water from a line 33, branched off ahead of the softener 21, is forced by pump 34 through control valve 35 inserted in line 33 into injection cooler 32. Saturated steam is discharged from injection cooler 32.
The gas turbine 2 is coupled to the steam compressor 1 and in ad-dition to a compressor 36 and a generator 37 which can provide, for instance, the electric power for the entire installation. The combustion chamber 38 inserted between the compressor 36 and the gas turbine 2 is supplied from a tank 39 with fuel ( gas, oil, etc.) This tank 39 may also be connected to burners 40 and 41 by means of which the preheaters 11 and 28 may be heated.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for generating superheated process steam from raw water con-taining salt, using preheaters for heating comprising preheaters to impart suf-ficient heat to raw water containing salt flowing therethrough to permit sub-sequent evaporation of said water, a decompression chamber for collecting a body of unevaporated water and salt above which is a vapor space containing steam connected to said last preheater in the flow direction of the raw water flowing through the preheaters, a control valve interposed in the flow of raw water be-tween said last preheater and said decompression chamber to regulate the flow of raw water to the decompression chamber, said water partially evaporating with the unevaporated water and salt collecting as said body in the decompression chamber and the evaporated water collecting in said vapor space above said body, and a compressor with its suction side connected to the vapor space of the decompression chamber for withdrawal of steam therefrom and compression and heating of the withdrawn steam.
2. Apparatus according to claim 1, wherein the steam compressor is coupled to a gas turbine and wherein conduit means are provided to flow hot exhaust gases from said gas turbine to said preheaters, the exhaust heat of the hot exhaust gases serving to heat the raw water in the preheaters.
3. Apparatus according to claim 2, wherein said gas turbine in addition to driving the steam compressor is coupled to a generator for generating electri-city.
4. Apparatus according to claim 1, wherein the preheaters are provided with burners to which fuel and air are fed to generate hot combustion gases which heat the preheaters.
5. Apparatus according to claim 1, wherein a transport line for trans-porting the superheated steam is connected from the steam compressor to an in-jection cooler at the site of use of the steam for generating saturated steam.
6. Apparatus according to claim 1, wherein a blow-down line for the un-vaporized raw water is connected to the decompression chamber, and wherein a heat exchanger for preheating the raw water before the latter enters said preheaters is inserted into the blow-down line.
7. Apparatus according to claim 6, wherein the blow-down line conducts the heated unvaporized raw water into and out of condensers cooled by raw water passing through cooling tubes with stepwise reduced pressure to effect evaporation of part of the unvaporized raw water and condensation of such vapor, and wherein the condensers have collecting tanks for the condensate forming at the cooling tubes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3020297A DE3020297A1 (en) | 1980-05-28 | 1980-05-28 | PLANT FOR PRODUCING OVERHEATED PROCESS STEAM FROM SALTY RAW WATER |
| DEP3020297.2 | 1980-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1162802A true CA1162802A (en) | 1984-02-28 |
Family
ID=6103445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000378447A Expired CA1162802A (en) | 1980-05-28 | 1981-05-27 | Installation for generating superheated process steam from salt-containing raw water |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4445325A (en) |
| BR (1) | BR8103319A (en) |
| CA (1) | CA1162802A (en) |
| DE (1) | DE3020297A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755304A (en) * | 1980-09-22 | 1982-04-02 | Tokyo Shibaura Electric Co | Flasher |
| EP0114173A1 (en) * | 1983-01-25 | 1984-08-01 | Mitsui Engineering and Shipbuilding Co, Ltd. | Method of and system for utilizing thermal energy accumulator |
| US4491093A (en) * | 1984-03-26 | 1985-01-01 | Hoekstra I Arthur | Energy and water recovery from flue gases |
| DE3427302A1 (en) * | 1984-07-20 | 1986-01-30 | Kraftwerk Union AG, 4330 Mülheim | Steam power plant for generating steam from salt-containing raw water |
| DE4129115A1 (en) * | 1991-09-02 | 1993-03-04 | Abb Patent Gmbh | Steam-generation method using waste heat - involves superheating saturated stream generated in both heating stages |
| DE4446862C2 (en) * | 1994-12-27 | 1998-01-29 | Siemens Ag | Method for cooling the coolant of a gas turbine and device for carrying out the method |
| JP2001173410A (en) * | 1999-12-21 | 2001-06-26 | Mitsubishi Heavy Ind Ltd | Gas turbine control device for one axial type combined cycle power generation plant, and gas turbine output calculating method |
| DE102013202249A1 (en) * | 2013-02-12 | 2014-08-14 | Siemens Aktiengesellschaft | Steam temperature control device for a gas and steam turbine plant |
| CN103775150B (en) * | 2014-01-22 | 2016-03-02 | 牟大同 | A kind of electricity-water cogeneration system and method |
| CN113860619A (en) * | 2021-11-15 | 2021-12-31 | 湖北鑫达晟联蒸发设备有限公司 | Environment-friendly efficient sewage evaporator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970434A (en) * | 1955-06-28 | 1961-02-07 | Gen Electric | Steam-gas turbine powerplant with steam compressor |
| US3489652A (en) * | 1966-04-18 | 1970-01-13 | American Mach & Foundry | Desalination process by multi-effect,multi-stage flash distillation combined with power generation |
| GB1188842A (en) * | 1967-05-22 | 1970-04-22 | Atomic Energy Authority Uk | Dual Plant for Producing Both Power and Process Heat for Distilling Liquid. |
| DE2243380C3 (en) * | 1972-09-04 | 1978-07-20 | Kraftwerk Union Ag, 4330 Muelheim | Steam power plant with flue gas heated feed water preheater and water heated air preheater |
| DE2513575C2 (en) * | 1975-03-27 | 1982-07-15 | Brown, Boveri & Cie Ag, 6800 Mannheim | System for steam generation connected to a nuclear power plant |
| CH593424A5 (en) * | 1976-05-14 | 1977-11-30 | Bbc Brown Boveri & Cie | |
| US4282070A (en) * | 1978-05-30 | 1981-08-04 | Dan Egosi | Energy conversion method with water recovery |
-
1980
- 1980-05-28 DE DE3020297A patent/DE3020297A1/en not_active Withdrawn
-
1981
- 1981-05-27 CA CA000378447A patent/CA1162802A/en not_active Expired
- 1981-05-27 BR BR8103319A patent/BR8103319A/en unknown
-
1983
- 1983-08-24 US US06/526,213 patent/US4445325A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BR8103319A (en) | 1982-02-16 |
| US4445325A (en) | 1984-05-01 |
| DE3020297A1 (en) | 1981-12-10 |
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